A bit plane coding method in FGS enhancement layer based on distribution of rfesidue signals

Abstract

This paper proposed two techniques that can improve coding efficiency in the enhancement layer of FGS. First is a method to decide the dynamic range of residue with reference to the base layer and to cut down the number of bits being candidate for coding. Second is a method to code binary symbols as they are, at lowest bit plane where coding efficiency becomes especially worst, and not to output marker codes of MPEG-4. Proposed method can improve the coding efficiency of conventional FGS by about 2%.